ACTION OF ULTRAVIOLET RADIATION ON UREASE (in French)
Journal Article
·
· Compt. Rend.
OSTI ID:4159008
The exposure of aqueous solutions of urease to ultraviolet radiations causes a transitory increase of the urease activity and a decrease of the Michaelis constant from 1.72 to 0.94. Interpretation of this fact is delicate as the uv radiation acts on the proteins in the denaturing agent. It seems that, in the first irradiation period, the urease molecule assumes a more active structure than the initial structure. This can be due to the liberation, following the unfoldlng of the polypeptide chains of the urease molecule, of reaction sites normally masked inside the enzyme. (tr-auth)
- Research Organization:
- Faculte de Medecine, Montpellier, France
- NSA Number:
- NSA-18-001741
- OSTI ID:
- 4159008
- Journal Information:
- Compt. Rend., Journal Name: Compt. Rend. Vol. Vol: 257
- Country of Publication:
- Country unknown/Code not available
- Language:
- French
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Related Subjects
ANGULAR DISTRIBUTION
CHEMISTRY
CURRENTS
DECAY
ELECTRIC ARCS
ELECTRIC CONDUCTIVITY
EMISSION
ENERGY
ENERGY RANGE
ENZYMES
EXCITATION
HAFNIUM
IMPURITIES
LIGHT
MEASURED VALUES
MUONS
NUCLEAR EMULSIONS
OPERATION
PARTICLE TRACKS
PELLETS
PIONS
POSITRONS
PROTEINS
QUANTITATIVE ANALYSIS
QUANTITY RATIO
RADIATION EFFECTS
SAMPLING
SENSITIVITY
SOLUTIONS
SPECTROSCOPY
STATISTICS
TRACE AMOUNTS
ULTRAVIOLET RADIATION
UREASE
WATER
ZIRCONIUM
CHEMISTRY
CURRENTS
DECAY
ELECTRIC ARCS
ELECTRIC CONDUCTIVITY
EMISSION
ENERGY
ENERGY RANGE
ENZYMES
EXCITATION
HAFNIUM
IMPURITIES
LIGHT
MEASURED VALUES
MUONS
NUCLEAR EMULSIONS
OPERATION
PARTICLE TRACKS
PELLETS
PIONS
POSITRONS
PROTEINS
QUANTITATIVE ANALYSIS
QUANTITY RATIO
RADIATION EFFECTS
SAMPLING
SENSITIVITY
SOLUTIONS
SPECTROSCOPY
STATISTICS
TRACE AMOUNTS
ULTRAVIOLET RADIATION
UREASE
WATER
ZIRCONIUM